3DMolSym is an educational program designed to visualize the symmetry elements of molecules and to animate the corresponding...
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3DMolSym is an educational program designed to visualize the symmetry elements of molecules and to animate the corresponding symmetry operations in an interactive 3D environment.It is aimed to help chemistry students conceive the symmetry properties of the molecular structure. 3DMolSym includes a database with symmetry and geometry data of 48 organic and inorganic molecules, corresponding to all point groups of chemical interest.

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Interactive molecular visualization of molecular normal modes of vibration.3DNormalModes is a molecular visualization...
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Interactive molecular visualization of molecular normal modes of vibration.3DNormalModes is a molecular visualization educational program that provides a convenient way to illustrate how a molecule vibrates and the properties of its normal modes of vibration in a real 3D environment.

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Select this link to open drop down to add material ComSpec3D - VRML Visualization of Raman and Infrared Spectra of Molecules to your Bookmark Collection or Course ePortfolio

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This is an automated demonstration enabling the user to measure the optical rotatory dispersion of a mixture of optical...
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This is an automated demonstration enabling the user to measure the optical rotatory dispersion of a mixture of optical isomersOptical activity of compounds in solution can be measured with a polarimeter, shown schematically in the upper part of the graphic. The angle of rotation of plane polarized light, conventionally the sodium D-line at 589 nm, is determined using two polarizers. (In the graphic, an idealized incident polarizer is reduced to a vertical slit coincident with the plane of polarization.) The angle of polarization of the emerging light is given by , where is the specific rotation, referred to the sodium D-line and a temperature of 20 ºC, is the path length in decimeters (set equal to 10), and is the concentration in g/ml.

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Select this link to open drop down to add material Optical Activity of Tartaric Acid Stereoisomers to your Bookmark Collection or Course ePortfolio

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Select this link to open drop down to add material Colby College Organic Chemistry Simulations to your Bookmark Collection or Course ePortfolio

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Select this link to open drop down to add material Distillation of Crude Oil (Fractional Distillation) to your Bookmark Collection or Course ePortfolio

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This is a great tool for learning how to obtain a structure given a molecular formula and a proton nuclear magnetic resonance...
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This is a great tool for learning how to obtain a structure given a molecular formula and a proton nuclear magnetic resonance (1H NMR) spectrum. First, the user is required to calculate and enter double bond equivalents. Next, the user selects molecular fragments based upon what is seen in the spectrum. The user can watch as the molecular formula counts down as fragments are selected. Any fragments not seen in the spectrum are then selected so that the molecular formula reaches 0. In the next phase, the user builds a molecule using the selected fragments (taking care to rotate methyl groups only). If the structure is incorrect, a message comes up giving the user the opportunity to try other structures. If the correct structure is chosen, the application gives a message to that effect and then closes. Thus far, there are 50 exercises. The application is a great tool for teaching students about the nuances of proton NMR.

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Select this link to open drop down to add material Proton NMR Exercises with Structure Builder to your Bookmark Collection or Course ePortfolio

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'The Atomdroid app is a computational chemistry tool for the Android platform. It can be used as a molecular viewer/builder...
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'The Atomdroid app is a computational chemistry tool for the Android platform. It can be used as a molecular viewer/builder and contains local optimization and Monte Carlo simulation features. Install now and experience mobile computational chemistry!List of features:* molecular viewing (compatible with xyz and pdb files)* trajectory analysis and viewing* molecular building (export to xyz)* PDB downloader (requires the Internet permission, downloads compressed pdb to save on your data plan)* Atomdroid molecular libraries (requires the Internet permission)* local optimization (L-BFGS and Powell algorithms)* Monte Carlo simulation and analysis* Global optimization using a Monte Carlo with minimizations approach* Universal Force Field (UFF) implementation (currently without electrostatics)* communication with other Atomdroid users via bluetooth and share your molecules (requires bluetooth permission, we are VERY cautious with using it)Future versions will contain:* more force field implementations (including analytical gradients)* molecular dynamics engine* and more...The application is currently in beta state.'This is a free app

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The VRML File Creator for Chemical Structures is an online service for the generation of VRML scenes from...
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The VRML File Creator for Chemical Structures is an online service for the generation of VRML scenes from your 2D or 3D data files. It supports over 40 structure file formats and contains also a Molecule editor for structure input. It automatic generates 3D coordinates if not contained in the input structure. The service allows the measurement of atom distances, bond angles and torsional angles. It has many display options to control the visual appearance.

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